arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1503.07326physics.acc-phhep-ex
收藏

IMP肿瘤治疗用HSC型注射器的高功率加速成功

Successful High Power Acceleration of the HSC Type Injector for Cancer Therapy in IMP

Liang Lu

摘要:

在此基础上,研制了一种将射频四极杆结构和漂移管结构组合在一个叉指H腔中的混合单腔直线加速器,并将其组装成用于治癌同步加速器的原理验证型注入器。HSC直线加速器的注入方式采用了直接等离子体注入方案(DPIS),该方案被认为是目前唯一能加速激光离子源(LIS)产生的强流重离子束的方法。HSC的输入束流被设计为20毫安(mA)C6+离子。数值模拟结果表明,该加速器可以加速6 mA的C6+离子束,满足治癌所需粒子数(108~9个/脉冲)的要求。该注入系统采用了DPAS方法的HSC注入器,可以省去现有的多匝注入系统和剥离系统,并可以使现有同步加速器磁体的束管尺寸缩小,从而降低同步加速器的整体成本(估计数百万美元)。详细的测量和评估组装的HSC直线加速器,并使用LIS与DPIS的高功率测试的结果,本文报道。

英文摘要:

A Hybrid single cavity (HSC) linac, which is formed by combining a radio frequency quadrupole (RFQ) structure and a drift tube (DT) structure into one interdigital-H (IH) cavity, is fabricated and assembled as a proof of principle (PoP) type injector for cancer therapy synchrotron according to the series researches. The injection method of the HSC linac adopt a direct plasma injection scheme (DPIS), which is considered to be the only method for accelerating an intense current heavy ion beam produced by a laser ion source (LIS). The input beam current of the HSC was designed to be 20 milliampere (mA) C6+ ions. According to numerical simulations, the HSC linac could accelerate a 6-mA C6+ beam which meets requirement of the needed particle number for cancer therapy use (108~9 ions per pulse). The injection system adopted HSC injector with the method of DPIS can make the existing multi-turn injection system and the stripping system unnecessary, and also can make the beam pipe of the existing synchrotron magnets downsize which could reduce the whole cost of synchrotron (estimated millions dollars). Details of the measurements and evaluations of the assembled HSC linac, and the results of the high power test using a LIS with DPIS are reported in this paper.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑